Παραπομπή APA

Steers, R. M. a. . P. (1991). Motivation and work behaviour (5 Edition.).

Παραπομπή Chicago Style

Steers, Richard M and Porter. Motivation and Work Behaviour. 5 Edition. Mcgraw Hill Book Co., New York, 1991.

Παραπομπή MLA

Steers, Richard M and Porter. Motivation and Work Behaviour. 5 Edition. 1991.